Island



L. P. SBILLE.

WELDING FLAME.

UMTED STATES,

PATENTv QFFICE.

IO PULSB-ILLE, 0F PROVIDENCE, RHODE ISLAND,

WELDING-FLAME.

To all 'Inkom it may concern:

Be it known that I, Lo PAUL SBILLE,

a citizen of. the United States, and resident of the city of Providence,in thecounty of Providence and State of Rhode Island, have inventedcertain new and useful Improvements in Welding-Flames, of which thefollowing is a specification.

This invention relates to a process of producing an improved flame forthe purpose of welding metals and the like by the'so-called autogenousmethod, and this invention has for its object to provide a combinationof gases for such a flame consisting of a mixture of one or mbrecombustible gases and to burn this mixture in connection with one ormore combustion supporting gases for the purpose of producing a amewhose temperature may be regulated to accommodate itself to thedifferent fusing points of the material on which it is operating.

Another object of this invention isto provide such a mixture of gases asto produce a good welding flame using mainly gases that when burnedalone in connection with air or pure oxygen, produce none or very little`neutral' zone,- and I am also able to nicely regulate the temperatureof this flame.

A stillr further object of this invention is to provide a compound gaseffective in producing a weldin flame whose temperature may be regulateand which gas combines mainly inexpensive gases, which mixture has notheretofore been utilized for this purpose, thereby materially reducingthe cost of welding.

This invention further consists in -so mixing the gases that a flame isproduced which has a cone sosoft that it will yield, bend and spread ifaccidentally brought into direct contact with the melted or softenedsurface on the metal, instead of penetrating this yielding surface,which is the case with the usual oxyacetylene flame, and whichpenetrating e'ect will bore holes, move the soft-.

ened material about, cause a dissolution of the gas, and thecarbonization of the metal,

and also forms blow holes in the work, all of Which highly objectionableeffects would not be possible by the use of my improved flame even whenbrought into too close proximity to the work.

With these andother objects in view,'this invention consists of certainnovel features Specication of Letters Patent.

Application filed December 7, 1916. Serial No. 135,544.

Aas will bemore fully described and particularly pointed out .in theappended claims.

In the accompanying drawings;

, Figure 1--` is a diagrammatic view illustrating a blow pipe or -torchin the act of welding pieces of material together; thel .torch beingarranged to be connected to Various gas containers carrying diierentkinds of gases, whereby the desired combination or mixture of gases maybe provided for producing the desired flame.

Fig. 2` is a View illustrating the usual oxyhydrogen flame which has nocone and practically no neutral zone therein'.

Fig 3- is a view illustrating my immainly hydrogen gas as combustiblewheresoY by a cone of practical shape, and size and 4also a suitableneutral Zone is produced.

The usual autogenous welding is produced by a' combination of acetyleneand oxygen gases, which combination of gases produces what is known asthe oxyacetylene flame which has a cone and a neutral zone, but thisflame is very expensive to produce and has the disadvantage of having atemperature which is too high for general use` as it burns the metalunless great care -is taken in handling the same.

This flame also has a cone which is very hard and which will if carriedtoo close to the soft metal carboniz'e thel metal, and push, forceormove away that portion of the metal which is melted or softened boringholes in the same and giving a greater chance for the dissolution of thegas and also the making of blow holes in the Weld which is particularlyobjectionable.

To obviate these diiiiculties, I mix hydroi .molten metal elfectuallypreventing injury f'to 'the soft metal and also prevent carbonization ofthe same.l

In some cases it -is found in practice that Ioxygen in combination withthe combustible gases if desired,` the proportions of each beingregulated by manipulating the different valves 12 to suit conditionsunder which the flame is being operated.

An important feature in the use of a flame formed by my improved mixtureof gases, lthe temperature of Whose flame may be regulated, is that byits use steel or iron of any thickness may be Welded, which is not thecase with the ordinary oxyhydrogen or oxycoalgas flame as the thicknessof stock capable of being Welded by this flame is decidedly limited. v

I have shown anumber of`tanks designated as containing dieren't gases,Which are divided up into tWo groups, one of combustible gases such asacetylene in tank 13, hydrogen 14, coal gas 15, Blau gas 16 andhydrocarbon gas 17 all of which tanks are shown as connected to thetorchpipe 18 and a flow of any combination of these gases may becontrolled through the various valves 12 to obtain the desired mixture,While the other group shows a tank 19 of pure oxygen and another tank 20Which may contain airor other combustion supporting gas, anydesiredmixture of Which gases in the pipe 22 may obtained by regulatingthe valves 21.

The combustion -supporting gas in pipe 22 leads through the torch head23 and the combustible gases lead through pipe 18 also into the torchhead where these tWo groups are united and pass together through thenozzle 24 at the apex of which they are ignited and this flame is heldby the operator the desired distance from the portion of the work 25, tobe Welded as illustrated at 26.

Having thus described one illustrative embodiment of my invention andthe best mode known to me for carrying 4out my method, I desire it to beunderstood that although specific terms are employed, they are used in ageneric and specific sense and not for the purpose of limitation, thescope of the kinvention/being defined by the appended claims.

' I claim:

1. An improved process of producin a Welding flame consisting in mixingtoget er tWo or more combustible' gases and burning this mixture inconnection With a combustion supporting gas, the proportion of thedifferent gases being regulated to produce a flame of 'fthe desiredtemperature.

2. An improved process of producing a Welding llame, consisting inmixing together hydrogen and acetylene gases and burning this mixturewith oxygen, the proportion of each of the different gases beingregulated to produce a flame of the desired temperature.'

3. An improved process'of producing a,

Welding flame which consists in regulating` the flow of' each of two ormore combustible gases to a mixing chamber, and burning the mixed gasesin connection with a combustion supporting gas.

4. An improved process of producin a Welding flame Which consists inregulatlng the How 0f tWO or more combustible gases'to form a mixture,4and regulating the fiow of such mixture and the flow of a combustionsupporting gas to form a final mixture, and burningA said .finalmixture.

In testimony whereof I aix my signature.

LEO VPAUL sBrLLE.

